<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Vue基础呀</title>
  </head>

  <body>
    <div id="app">
      {{ message }}
    </div>

    <!-- 开发环境版本，包含了有帮助的命令行警告 -->
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>


    <script>
      var app = new Vue({
        el: "#app",
        data: {
          message: "hello world!"
        }
        
      });
    </script>

    <!-- data是这个Vue实例中使用到的数据。用什么就写什么 -->
  </body>
</html>
